Generalized asymptotic structure of the ultrarelativistic Schwarzschild black hole

TL;DR

This paper explores the asymptotic structure of ultrarelativistic Schwarzschild black holes, providing explicit conformal boundary constructions and formulas for ADM and Bondi four-momenta, advancing understanding of their gravitational properties.

Contribution

It introduces a detailed conformal boundary framework for ultrarelativistic Schwarzschild black holes and derives associated momentum expressions, extending previous asymptotic analyses.

Findings

Explicit conformal boundary at spatial and null infinity

Formulas for ADM and Bondi four-momenta derived

Enhanced understanding of ultrarelativistic black hole asymptotics

Abstract

We discuss the asymptotic structure of the ultrarelativistic Schwarzschild black hole. An explicit construction for a conformal boundary both at spatial and null infinity is given together with the corresponding expressions for the ADM and Bondi four-momenta.